The FDMF6706B is an extra-small, high-performance, high-frequency DrMOS module that offers a 6x6mm PQFN package that saves 72% of space compared to conventional discrete solutions. This module offers up to 93% peak efficiency and can handle up to 45A of current.
The Fairchild FDMF6706B is an extra-small, high-performance DrMOS module designed for high-current, high-frequency synchronous buck DC-DC applications. It integrates a driver IC, two power MOSFETs, and a bootstrap Schottky diode into a thermally enhanced 6x6mm PQFN package. The device utilizes Fairchild PowerTrench technology to reduce switch ringing and eliminate the need for snubber circuits in most buck converter applications.
Key features include over 93% peak efficiency, high-current handling of up to 45A, and a 3-state 3.3V PWM input driver. The module incorporates adaptive gate drive timing for shoot-through protection, skip-mode operation (SMOD) for improved light-load efficiency, and a thermal warning flag for over-temperature conditions. It is optimized for switching frequencies up to 1MHz.
| Current Rating (fsw=1MHz) | 40 A |
|---|---|
| Package Type | 40-Lead Clipbond PQFN |
| Dimensions | 6.0mm x 6.0mm |
| Peak Efficiency | >93% |
| Switching Frequency Max | 1MHz |
| Operating Temperature Range | -40°C to +125°C |
The FDMF6706B uses an ultra-compact 6x6mm PQFN package.
Yes, it includes a Thermal Warning Flag (THWN#) that pulls LOW when temperature exceeds the trip limit.